Used to happen to us at the worst times (like when we had people visiting, which not only is frustrating, but also embarassing.

That is why we ponied up for a 2nd tank. Now, one runs out, we swap it out with the other and then are committed to getting the (now empty) backup tank filled within 1 week. Then you always have fuel, and the cost is about $17 more for a full, extra spare tank vs. just a tank swap type of refill.

Unless you are going to pony up the substantial amount of money necessary to run a gas line and, of course, acquire the kit to convert your barbecue, that second filled tank is a must at all times. Periodically, I do a roast using the rotisserie unit, and that is usually at least a two-hour process and whether it be the tank or the barbecue itself the guages for measuring what propane is left in the tank are useless.